Orthodontics - A MODIFIED QUAD HELIX APPLIANCE ------------------------------- www.orthotropics.co.uk ------------------------------- This is one of the earliest appliances introduced for posterior expansion, it is made of 0.036 Blue Elgiloy and ...
Quad Helix Expander | In Phase I (for our younger patients), we often use a quad helix expander to gently expand the upper arch. It is an orthodontic appliance that is...
![Quadhelix appliance. (A) 2 months after insertion. (B) 9 months after... | Download Scientific Diagram Quadhelix appliance. (A) 2 months after insertion. (B) 9 months after... | Download Scientific Diagram](https://www.researchgate.net/publication/319427659/figure/fig3/AS:614015214563341@1523404043608/Quadhelix-appliance-A-2-months-after-insertion-B-9-months-after-insertion.png)